A compound differs from a mixture because it

a. always remains frozen even at high temperatures.

b. is formed from two cations.

c. always contains the same elements in the same proportion.

d. can form only in the presence of heat energy.

How would your experimental formula of magnesium chloride "MgClx" have been affected if your product was not dried completely before weighing it? Would "x" be too high or two low?

In the molecule hcl, which atom is the negative pole? in the molecule, which atom is the negative pole? cl h

67g of K2O is how many moles

Which of the following is true of gases? A. Gases are easily compressed because of the low density. B. Gases do not mix well because of the low intermolecular forces. C. Particles flow easily in gases because of the high intermolecular forces. D.

A hydraulic system lift has 2000N applied to an input piston that has an area of 50cm2. The output piston has an area of 200cm2 what is the pressure on the liquid by the input piston?

True or False? Urea has a high solutiblity in water, due in part to its ability to form hydrogen bonds

Give a reasonable explanation why segments 2 and 4 are not associated with temperature increases even though heat is added a constant rate.

20.0 g of Nitrogen is produced when oxygen gas reacts with NO gas. 29.8 L of oxygen is required at STP to produce this 20.0 g of NO. A. yes B. false

What are some chemical properties of Nitrogen?

How many grams of Cl are in 150g of CCl4 if CCl4 has 92.2% of Cl?